Merge PDF Documents

Merge PDF Documents in C#

GroupDocs.Merger for .NET (which is a part of Conholdate.Total for .NET) allows you to merge several PDF files as per your need without any third-party software or manual work involved. With this API, it is possible to merge PDF documents of any size or structure - all text, images, tables, graphs, forms and other content will be preserved.

The code sample below shows the merging of PDF files with a few lines of C# code:

• Create an instance of Merger class and pass source PDF file path as a constructor parameter. You may specify absolute or relative file path as per your requirements.
• Add another PDF file to merge with Join method. Repeat this step for other PDF documents you want to merge.
• Call Merger class Save method and specify the filename for the merged PDF file as parameter.

// Load the source PDF file
using (Merger merger = new Merger(@"c:\sample1.pdf"))
{
    // Add another PDF file to merge
    merger.Join(@"c:\sample2.pdf");
    // Merge PDF files and save result
    merger.Save(@"c:\merged.pdf");
}